Ecological Relationships

What is a group of organisms of the same species living in the same habitat called?

• Community

• Ecosystem

• Population

• Biome

What is the term for organisms that only eat plants?

• Carnivores

• Herbivores

• Omnivores

• Detritivores

What is the primary producer in an ecosystem?

• Plants (or autotrophs)

• Herbivores

• Carnivores

• Decomposers

What is the relationship called when two species compete for the same resources?

• Competition

• Cooperation

• Predation

• Mutualism

What is the term for the maximum population size that an environment can sustain?

• Carrying capacity

• Population density

• Ecological footprint

• Biodiversity

What is the term for a relationship where both organisms benefit from the interaction?

• Mutualism

• Commensalism

• Parasitism

• Competition

What is the term for organisms that are at the top of the food chain and have no natural predators?

• Apex predators

• Secondary consumers

• Primary producers

• Tertiary consumers

What role do decomposers play in an ecosystem?

• They produce energy through photosynthesis.

• They break down dead organic matter and recycle nutrients back into the soil.

• They compete with plants for sunlight and water.

• They provide shelter for herbivores.

What ecological relationship occurs when one organism benefits while the other is neither helped nor harmed?

• Mutualism

• Parasitism

• Commensalism

• Competition

What is the difference between a food chain and a food web?

• A food chain is a linear sequence of organisms, while a food web is a complex network of interconnected food chains.

• A food chain includes multiple species, whereas a food web consists of only one species.

• A food chain is a complex network of interconnected food webs, while a food web is a simple linear sequence.

• A food chain represents the energy flow in an ecosystem, while a food web represents the nutrient cycle.